This low profile Universal Stopper is clear with a enclosed flush back box. Other mounting options include a flush mount, surface mount or a waterproof Type 4X enclosed back box (Type rating pending). The cover is also available with a horn housing or message hood. The Universal Stopper is designed to comply with ADA and is less than 4 inches in depth. Universal Stopper has the same footprint as the Mini Stopper®, but has a larger interior and can accommodate most dual action pull stations.